Create an account

Start your adventure today.


    Already a member? Login

    Three Peaks Loop Trail

    This reflects the 10Adventures difficulty rating for each route. We aim to keep ratings consistent across regions.
    This reflects the estimated time the majority of users will take on this trail. If you are slower, add time to the top-end figure. If you are fast, then you may complete this route faster than this time range.
    This reflects the return distance of this route as measured by the GPS file.
    22.7 km
    This reflects the total elevation gained throughout this route as measured by the GPS file. This includes all ascents and descents, and is higher than what is quoted in most route guides, which simply measure the distance between the starting-point and high-point of the route.
    1,417 m
    User Ratings
    These ratings are completed by users who have completed this trail and not subject to reviews by 10Adventures.
    Be the first to add a review!
    Directions to Trailhead

    Summit Boulder’s highest mountains along the Three Peaks Loop Trail. Immerse yourself in Boulder’s landmarks as you climb from Green Mountain and the Flatirons, past Bear Peak and down to South Boulder Peak. Ideal for intrepid adventurers seeking a challenge, this summit hike demands stamina.

    Download the 10Adventures App

    View Three Peaks Loop Trail on Map

    View Map

    Join our newsletter

    Get a weekly dose of discounts and inspiration for adventure lovers

    Route Description for Three Peaks Loop Trail

    The Three Peaks Loop Trail is a stunning adventure that reveals epic vistas of the encompassing wilderness and landscapes, from the Boulder cityscape to the snow-capped Front Range peaks that flank the verdant foothills. Perfect for those seeking to challenge themselves, the Three Peaks Loop Trail will tire even the most experienced hikers. As you will be traveling along exposed summits and ridges, it is recommended to check the forecast and hike in the early morning to avoid afternoon storms. Additionally, wear layers as insurance against varying conditions and consider microspikes in the late fall and winter months.

    Begin your journey along the Three Peaks Loop Hike from the Amphitheatre Trailhead. Though this route can be completed from either direction, we highly suggest trekking clockwise! From the trailhead, keep right and hike along the Amphitheatre Trail. Hike this path southwest merging onto the Saddle Rock Trail after a few kilometers. Soon after you will want to hook onto the E.M Greenman Trail, which will deliver you to the summit to Green Mountain. From here, take the Green Mountain West Ridge Trail down the western flank of the peak before turning left onto the Green Bear Trail. This path will guide adventurers to Bear Creek where you will want to keep right at the intersection, which will divert you onto the Bear Peak West Ridge Trail.

    This route will climb up the western flank of Bear Peak. From the summit, revel in the panoramic views before taking the South Boulder Peak Trail to the highest summit of the three. Rest and rehydrate here before beginning your descent. Track the Shadow Canyon Trail east and be mindful of your footing on the steep terrain. At the bottom of the Canyon, veer left and merge onto the Mesa Trail, which will lead you north along the base of the foothills. At the trail’s end, merge onto the Bluebell Hiking Trail, then left onto the Meadow Trail, which will deliver hikers back to the trailhead.

    Getting to the Three Peaks Loop Trail Trailhead

    The Three Peaks Loop Trail is accessed via the Amphitheatre Trailhead off Gregory Canyon Road

    Route Information

    • Backcountry Campground


    • When to do


    • Pets allowed

      Yes - On Leash

    • Family friendly


    • Route Signage


    • Crowd Levels


    • Route Type


    Three Peaks Loop Trail Elevation Graph

    Weather Forecast

    Check Area Weather

    Three Peaks Loop Trail Reviews

    Add a comment

    You must be logged in to post a comment.

    Nearby Trails

    Nearby Regions

    Get travel inspiration and discounts

    Join our weekly travel newsletter